FX_BOOL considered harmful.

core/include/thirdparties/libjpeg/jpegint.h

 /*
  * jpegint.h
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
  * This file provides common declarations for the various JPEG modules.
  * These declarations are considered internal to the JPEG library; most
  * applications using the library shouldn't need to include this file.
@@ skipping 77 matching lines @@
 };
 
 /* Downsampling */
 struct jpeg_downsampler {
   JMETHOD(void, start_pass, (j_compress_ptr cinfo));
   JMETHOD(void, downsample, (j_compress_ptr cinfo,
                              JSAMPIMAGE input_buf, JDIMENSION in_row_index,
                              JSAMPIMAGE output_buf,
                              JDIMENSION out_row_group_index));
 
-  boolean need_context_rows;    /* TRUE if need rows above & below */
+  boolean need_context_rows;    /* true if need rows above & below */
 };
 
 /* Forward DCT (also controls coefficient quantization) */
 struct jpeg_forward_dct {
   JMETHOD(void, start_pass, (j_compress_ptr cinfo));
   /* perhaps this should be an array??? */
   JMETHOD(void, forward_DCT, (j_compress_ptr cinfo,
                               jpeg_component_info * compptr,
                               JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
                               JDIMENSION start_row, JDIMENSION start_col,
@@ skipping 97 matching lines @@
 };
 
 /* Entropy decoding */
 struct jpeg_entropy_decoder {
   JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
   JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo,
                                 JBLOCKROW *MCU_data));
 
   /* This is here to share code between baseline and progressive decoders; */
   /* other modules probably should not use it */
-  boolean insufficient_data;    /* set TRUE after emitting warning */
+  boolean insufficient_data;    /* set true after emitting warning */
 };
 
 /* Inverse DCT (also performs dequantization) */
 typedef JMETHOD(void, inverse_DCT_method_ptr,
                 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
                  JCOEFPTR coef_block,
                  JSAMPARRAY output_buf, JDIMENSION output_col));
 
 struct jpeg_inverse_dct {
   JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
   /* It is useful to allow each component to have a separate IDCT method. */
   inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS];
 };
 
 /* Upsampling (note that upsampler must also call color converter) */
 struct jpeg_upsampler {
   JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
   JMETHOD(void, upsample, (j_decompress_ptr cinfo,
                            JSAMPIMAGE input_buf,
                            JDIMENSION *in_row_group_ctr,
                            JDIMENSION in_row_groups_avail,
                            JSAMPARRAY output_buf,
                            JDIMENSION *out_row_ctr,
                            JDIMENSION out_rows_avail));
 
-  boolean need_context_rows;    /* TRUE if need rows above & below */
+  boolean need_context_rows;    /* true if need rows above & below */
 };
 
 /* Colorspace conversion */
 struct jpeg_color_deconverter {
   JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
   JMETHOD(void, color_convert, (j_decompress_ptr cinfo,
                                 JSAMPIMAGE input_buf, JDIMENSION input_row,
                                 JSAMPARRAY output_buf, int num_rows));
 };
 
@@ skipping 130 matching lines @@
 extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */
 
 /* Suppress undefined-structure complaints if necessary. */
 
 #ifdef INCOMPLETE_TYPES_BROKEN
 #ifndef AM_MEMORY_MANAGER       /* only jmemmgr.c defines these */
 struct jvirt_sarray_control { long dummy; };
 struct jvirt_barray_control { long dummy; };
 #endif
 #endif /* INCOMPLETE_TYPES_BROKEN */